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add:观众滑动右侧半透明效果

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This commit is contained in:
zlzw 2022-08-23 13:11:55 +08:00
parent 6d9fd4e0a8
commit cfcad83328
1 changed files with 5 additions and 3 deletions
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8
live/src/main/java/com/yunbao/live/custom/RightGradual.java
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@ -26,20 +26,22 @@ public class RightGradual extends RecyclerView.ItemDecoration {
public RightGradual() { public RightGradual() {
mPaint = new Paint(); mPaint = new Paint();
mXfermode = new PorterDuffXfermode(PorterDuff.Mode.DST_IN); mXfermode = new PorterDuffXfermode(PorterDuff.Mode.DST_IN);
mLinearGradient = new LinearGradient(0.0f, 0.0f, 0.0f, 10.0f, new int[]{0, Color.BLACK}, null, Shader.TileMode.CLAMP); mLinearGradient = null;
} }
@Override @Override
public void onDrawOver(Canvas canvas, RecyclerView parent, RecyclerView.State state) { public void onDrawOver(Canvas canvas, RecyclerView parent, RecyclerView.State state) {
super.onDrawOver(canvas, parent, state); super.onDrawOver(canvas, parent, state);
float left=parent.getRight()-parent.getRight()/2f; float left=parent.getRight()-parent.getRight()/0.1f;
float top=0f; float top=0f;
float right=parent.getRight(); float right=parent.getRight();
float bottom=parent.getBottom(); float bottom=parent.getBottom();
if(mLinearGradient==null){
mLinearGradient=new LinearGradient(parent.getMeasuredWidth(), 0.0f, 0.0f, 0.0f, new int[]{0, Color.BLACK}, new float[]{0.0f,0.2f}, Shader.TileMode.CLAMP);
}
mPaint.setXfermode(mXfermode); mPaint.setXfermode(mXfermode);
mPaint.setShader(mLinearGradient); mPaint.setShader(mLinearGradient);
//mPaint.setColor(Color.BLUE); //mPaint.setColor(Color.BLUE);
System.out.println("left = "+left+" right = "+right+" bottom = "+bottom);
canvas.drawRect(left, top,right, bottom, mPaint); canvas.drawRect(left, top,right, bottom, mPaint);
mPaint.setXfermode(null); mPaint.setXfermode(null);
canvas.restoreToCount(mLayerId); canvas.restoreToCount(mLayerId);